How can it be a warning shot, when everyone is laughing too hard?
Or those in China without a sense of humour, just ignore this completely, and gets back to work.
The first ban, meant that the US was unreliable. That was good enough.
They would have moved on by now.
Incidentally, there was a story a couple days ago, posted in this forum I believe, describing how a Chinese research institute, that was banned from buying Intel chips and Nvidia chips, were still buying them, 20 years later after being originally banned.
Seems to me this new ban against Huawei will be focused on 14nm chips. While Huawei rumoured supplier, SMIC, already can fab a 7nm chip.